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Which of the following CANNOT be an empirical formula?

Which of the following CANNOT be an empirical formula?

A.

\(CH\)

B.

\(CH_{2}\)

C.

\(P_{2}O_{5}\)

D.

\(N_{2}O_{4}\)

View answer & explanation

Correct answer is D

The empirical formula is always in the ratio of the smallest positive integer, hence, \(N_{2}O_{4}\) has an empirical formula \(NO_{2}\)

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